Mixer or commingler for evaporators and the like.



G. R. RAY.

MIXER OR GOMMINGLER POR-BVABORATORS AND THE LIKE.

APPLICATION PILED'00T.26, 190B.

Patented Sept. 12, 1911.

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UNITED STATES PATENT ()FFICE.

GEORGE R. BAY, OF MANISTEE, MICHIGAN.

MIXER OR GOMMINGLER FOR EVAPORATORS AND THE LIKE.

To all whom it. may concern:

Be it known that I, GEORGE R. RAY, a citizen of the United States, residing at Manistee, in the county of Manistee and State of Michigan, have invented certain new and useful Improvements in Mixers or Comminglers for Evaporators and the Like, (for which I have heretofore obtained a patent in Great Britain, No. 24,186, filed November 23, 1905,) of which the following is a descri otion.

lV y invention relates to means adapted to be used with evaporating devices or the like, for mixing or oommingling the heating medium so as to equalize the temperature and pressure of the heating medium at the various inlets to the heating space of the evaporator, and also to provide a suitable chamber wherein any liquid carried along by the heating medium may be deposited before it reaches the heating space.

The object of my invention is to produce a simple, and eflicient device of the kind described, adapted to commingle the heating fluids of different temperatures and pressures available in the inlet pipe to an evaporator, as for example live and exhaust steam, so that the resulting fluid will be of substantially uniform temperature.

To this end my improvement consists in the novel construction, arrangement and combination of parts herein shown and described and more particularly pointed out in the claims.

In the accompanying drawings, wherein like or similar reference characters indicate like or corresponding parts; Figure 1 is a horizontal longitudinal section of my preferred form of device. Fig. 2 is a transverse section taken substantially on line 2-2 of Fig. 1. Fig. 8 is a fragmentary detail elevation of the preferred form of battle or partition; and Fig. 4 is a partial plan view showing my improvement attached in operative relation to an evaporating pan.

Experience with evaporating devices especially with the type known as vacuum pans has demonstrated that, where steam is supplied to the heating space or steam belt of the device in the usual manner, considerable entrained Water is carried into the steam space with the steam and it is also shown that with any heating medium, especially where the medium is supplied from more than one source as where live and exhaust steam are employed together, the

Specification of Letters Patent.

Patented Sept. 12, 1-911.

App1ication filed October 26, 1906. Serial No. 340,737.

temperature of the heating space will not be uniform for all parts of the space thereby producing more or less uncertain and unsatisfactory results. My invention herein shown and described when suitably connected between the supply pipe and the heating space of an exaporator very satisfactorily overcomes these difiiculties.

In the form shown in the drawings, 1 is a cylindrical fluid tight drum of suitable size, provided with an inlet 2, and any desired number of outlets 33 and 4, which are suitably connected to the heating belt of the evaporator. A suitable partition or battle is provided within the drum between the inlet 2 and the outlets, arranged to prevent the direct passage of the heating medium from the inlet to any of the outlets. As shown this partition consists of a plate 5 rigidly secured in position and extending substantially to the walls of the drum all around and provided with a plurality of suitable openings or perforations 6 near its central portion. An imperforate plate 7 slightly narrower than the plate 5 is rigidly attached thereto and spaced therefrom by any desired number of members ,88 rigidly attached to each. The position of the plate 7 is preferably parallel to the plate 5 and directly in front of, or opposite to, the perforation 6, so that practically all of the steam or other medium entering the drum 1 through the inlet 2 must pass between the edges of the plate 7 and the walls of the drum into the space between the plates 5 and 7 and thence through the openings 6 in the plate 5 in order to reach the space 15 to which the outlets are connected.

The outlets may be attached to the drum 1 in any suitable manner. As shown the outlets 3 .3 are each provided with a nozzle 9 of any desired form but preferably slightly larger than the desired outlet connection. A tubular member 10 is attached to the outer face of each nozzle 9 with a part extending into the interior of the drum to a point near its center where, if desired, they may be supported by a bracket 14 or equivalent means. The pipes 11 connect my device to the heating belt or zone of the evaporator and are each attached to the outer end of the member 10 and nozzle 9 as shown in Fig. 4. This arrangement'tends to thoroughly equalize the pressure and temperature of the heating medium in the chamber 15 and permits any moisture in the and pressures.

arated from the steam upon delivery to the heating belt of the evaporator, and also that the steam within the mixer, Whether live or exhaust steam or a mixture of both, is discharged from the mixer to the evaporator heating belt at difierent places'at substantially even or equal temperatures The-side outlet 4 may be arranged as above described if desired, but 1t has been found to give very satisfactory results to arrange a baffle plate 12 in front of this .7 7 outlet suitably spaced from the walls of the drum with a part extending to the walls'of the drum both above and below the outlet so that the current of steam or other heating medium escaping by this outlet is made -to' pass in close proximity to the sides of the drum near the outlet and thus raise the temperature of the walls at this point sufficien'tly to prevent the accumulation of moisture at this outlet.

As shown a suitable liquid outlet 16 is provided at the bottom of the drum by means of which all liquid separated from theheating medium'in its passage through my device may be discharged as fast as 1t accumulates.

Having thus described my improvement, it is obvious that various immaterial modifications may be made in my device without departing from the spirit of my invention, hence I do not wish to be understood as limiting myself to the exact form and construction shown. d

What I claim as new, and desire to secure by Letters Patent is ing a perforated plate extending across the chamber and asecond plate positioned before the" apertures insaid perforated plate arranged between 'said inlet and outlets,

sition; Q p

2. A mixer and separator of the kind described,- comprising a substantially cylinand 'means for securing said bafiie in podrical shell and heads. therefor forming a sides and ends thereof, said side outlets provided with baffling means therebefore and said end outlets extending from the central portion of the chamber in combination with a baflle comprising a plurality of plates, one of said plates extending across the chamber and provided with a plurality of apertures therein, and a second plate positioned before said apertures, said bafiie arranged between said inlet and outlets and means for securing said baffle in position.

3. A mixer and separator of the kind described, comprising a drum'provided with an inlet and a plurality of outlets, in combination with a bafile positioned between said inlet and outlets consisting of a plate extending across the interior of said drum and provided with a plurality of apertures therein, a second plate positioned before said apertures and spaced therefrom, and means for securing said plates in position within the drum.

4. A'mixer and separator of the kind described, comprising a drum provided with an inlet and a plurality of tubular outlets extending from the central portion outward of said drum, in combination with a baflie arranged between said inlet and said outlets.

5. A mixer and separator of the kind described, comprising a drum provided with an inlet, and a plurality of tubular outlets extending from the central portion of said drum outward, in combination with a plurality of bafiie plates positioned between said inlet and said outlets and adapted to prevent the direct passage of a fluid from said inlet to any of said outlets.

6. A mixer and separator of the kind described, comprising substantially a drum, provided with an inlet, and a plurality of tubular outlets each of said tubular outlets mounted upon the exterior of said drum scribing witnesses.

GEORGE R. RAY. Witnesses: JoHNL. GRIFFITHS, J OHN H. WALKER;

Copies of this 'patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, D. C. 

